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以硼捉中子做為快中子治療劑量增強之蒙地卡羅分析

Review of Monte Carlo Calculation of Dose Enhancement by Neutron Cature of Boron in Fast Neutron Therapay

摘要


快中子射源d(14)+Be有受限於在深度劑量頒佈上急速降低的現象。快中子進入體內部分即形成熟中子及高能熱中子頒佈可與硼產生BNCT反應。本文將回顧利用蒙地卡羅分析探討BNCT在快中了治療上劑量的變化。最後我們可以看到若在腫瘤內有100ppm的硼,則可產生15%的劑量增強。

並列摘要


The treatment of deep-seated tumors by d(14)+Be neutron beam therapy is limited due to the steep decrease in depth-dose distributin. The interaction of fast neutrons in tissue leads to a thermal neutron distribution which can be used to produce neutron capture reactions with boron. In this thesis we review the Monte Carlo calculation of the effect which the neutron capture reaction occurs in fast neutron therapy. At last, we can find that the absorbed dose in a tumor with 100 ppm boron, at the same depth, is enhanced by 15%.

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